Peppa Pig does elementary phyiscs (@Aubry)
Daddy Pig says that matter is Not made of photons. That's simplifying things in the same way that saying dinosaurs are made of felt is simplifying things. They're not. It's just completely wrong.
Matter is made of electrons, protons and neutrons.
Not photons. Light is made of photons. Light travels at the speed of Light. Other stuff is slower.